If things are tough now, they are not going to get any better. One day your kids will move permanently out of your house while you and your husband will be left there to face each other 24/7. Can you live with that? If love, respect and admiration are already gone I don't see how this can be turned around. I think emotionally you are ready for a divorce; take the house and whatever else he gives you, sell the things that don't fit the new realities and start building your life.